Home / 156,035.10-215,326.30-87,125.62

Finding the Fourth Proportional to 156,035.10, 215,326.30 and 87,125.62

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Solution

The fourth proportional to 156,035.10, 215,326.30 and 87,125.62 is: 120,232.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,035.10 : 215,326.30 = 87,125.62 : x
  2. Step 2: Convert to fraction form
    156,035.10/215,326.30 = 87,125.62/x
  3. Step 3: Cross multiply
    156,035.10x = 215,326.30 × 87,125.62
  4. Step 4: Simplify right side
    156,035.10x = 18,760,437,389.81
  5. Step 5: Solve for x
    x = 18,760,437,389.81/156,035.10
  6. Step 6: Final answer
    x = 120,232.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.